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AUTOMATIC MACHINE TCR CUTTING SMALL PINICNS. No. 420,836.

Patented eb. 4, 1890.

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T. F. SHERIDAN. lAITIOMA'II MACHINE FOR CUTTING SMALL PINIONS.

No. 420q836. Patented Feb.v 4, 1890.

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Tg1". SHERIDAN. AUTOMATIC MACHINE POR CUTTING SMALL PINIONS.

No. 420,836.b

Patented Feb. 4K, 1890.

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N A D Tl. Dw. .E H S E T. n .1m M O m AUTOMATIC MACHINE FCR CUTTING SMALL PINIONS.

No. 420,836. Patented Feb. 4, 1890.

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(No Model.) 9 Sheets-Sheet 5. T. P LSHERIDAN. AUTOMATIC MACHINE FOR CUTTING SMALL PINIONS.

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Patented Feb. 4, 1890.

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(No Model.) 9 Sheets-Sheet 6.

, T. P; SHBRIDAN. AUTOMATIC MACHINE FOR CUTTING SMALL PINICNS.

Patented Peb. 4, 1890.v

N PiTERs. PhowLilhngrnpm-r. Washington. DA C.

(No Model.) 9 Sheets-Sheet f1.

T. P. SHERIDAN. y AUTOMATIC MACHINE PCR CUTTING SMALL -PINIONS.

No. 420.836. Patented Peb. 4, 1890.

N. MYERS. Pham 9 sheets-#sheen Patented Feb. 4, 1890.

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AUTOMATIC MACHINE FOR GUTTING SMALL PINIONS.

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(No Model.) 9 Sheets-Sheet 9.

T. F. SHERIDAN. AUTOMATIC MACHINE TCR CUTTING CCIIALLv PIIIICIIA.Y

No. 420,836. 'Patented Ieb. 4,1390.l

ATENT OFFICE.

THOMAS F. SHERIDAN, OF SPRINGFIELD, ILLINOIS.

AUTOMATIC MACHINE FOR CUTTING SMALL PINIONS.

SPECIFICATION forming part of Letters Patent lNo. 420,836, dated February 4, 1890. Application filed May 3l, 18.88, Serial No. 275,573. (No model.)

To all whom t may concern:

Be it known that I, THOMAS F. SHERIDAN, a citizen of the United States, and a resident of Springfield, in the county of Sangamon and State of Illinois, have invented certain new and useful Improvements in Automatic Pinion-Cutting Machines; and I do declare the .following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification.

Figures lEL and l1 represent the plan view of my machine from the upper side. Fig. 2 is a vertical central section of the same upon the lineAA, Fig..l. Fig. 3 is a longitudinal section of the lsaid machine upon the line A A, Fig. 2. Fig. 4 is a vertical section upon the line Y Y, Fig. 3, showing the method of shifting the belts and mechanism for rotating the heads. Fig. 5 is a front View of the counter-shafts employed for driving the machine. Fig. 6 is a sectional view of the mechanism forv'ibrating the multiple cam. Figs. 7, S, and 9 aresection, plan, and elevation of pinion-carrier head. Fig. l0 is a plan view of the mechanism emplo/yed for rotating' said head. Fig. ll is a detail of spring and bearing for the pawl of said pinion-holding head. Fig. l2 isa sectional detail of the cutter-spindle. Fig. 13 isa View upon a plane showing one of the multiple cams by which the pinion-holding head is raised. Fig. 14 is a side elevation of pawl N and operating-levers. Fig. l5 is a plan view of tace-camR. Fig. 5 is a side section of the lever Q5, showing the spring' thereon g' and Figs. 5" and 5C are detail views of the same. Fig. 1G is an enlarged detailed plan view of one of the pawls N and its adjunctive parts; and Fig. 17 is a similar view of the lever S applied to the lever q, only a portion of the latter, however, being shown.

The invention relates to that class of autotomatic pinion-cutting machines in which several pinion-blanks are operated on simultaneously, the pinions being held by a series of holders which exceed the number of cutters employed, said holders presenting the pinion-blanks to the respective cutters a predetermined number of times, when the motion is arrested and the holders are automatically rotated to the next cutter, and so on until the pinions are finished.

` The invention consists in improvements in pinion-cutting machines, as hereinafter set forth, illustrated in the drawings, and pointed out in the claims.

Referring to the drawings, A designates the frame or base having a general cylindrical outer contour and provided interiorly with the bell-shaped recess for holding and supporting' the driving mechanism. At suitable points on the base-frame are secured the four vertical frames C, for holding the cutter-heads and mechanism for adjusting the same. Each frame C on its upper end is provided with the transverse way, upon which is fitted the slide c', andupon` the slide c is provided the slide c2, which carries the cutter-spindles D, the slide o and transl verse way having a tongue-and-groove con# nection O 0. The cutter-spindles D revolve in the sleeves secured to the slides c2 in the usual manner, and receive motion by. the grooved pulleys d. The slides c and c2 have ad j Listing-screws c8 and c4, having bearings c5 and c, The outside surface of the projecting bearings are provided with an indicatoranark, and the screw-shanks are graduated annularly, so that there is an adjustment of a'ininute part of an inch for the cutterslaterall y and longitudinally. The f ra mes C are swiveled on the pins c7, (shown in dotted lines, Figs. ln and llg) and are rigidly held to the base A, as adjusted, by the setbolts o8, which project through arc-slots in the base of the frame C.' This adjustment is necessary in order to bring the cutter-spindles D tangent to the pinions. By the mechanism described the cutters d2 may be moved 'so that a greater or less depth ot the pinionteeth can be cut and each cutter can be properly aligned.

A is a vertical tapered hub projecting from the base A, upon which is Iittedthe sleeve A2 of thetable B, which is held upon the hub by means of the transversely-beveled. washer or bearing b and the threaded nut b2, engaging the threaded end of the hub A. The table is designed to revolve freely on ssi:

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the hub without longitudinal displacement. At equidistant points on the outer circumference of said table are the outstanding vertical ways b3, which have one edge at right angles to the face and the inwardly-beveled opposite edge, as plainly shown in Figs. la and Il. Fitted to said ways are the pinion-holdi ng slides E, which are designed to move vertically thereon. The slides 'E are provided with cylindrical longitudinal openings b4, within which the quills F are fitted, and secured b v the split housing c and the screw e.

Fitted at the upper end of the slide E, in line with the quills F, is the bar c2, designed to slide in a dovetail groove. The sliding bar e2-is moved away from the center S by means of the lever c3, Fig. 9, which is pivoted on a lug e, extended from the slide E, and said bar is moved toward the center by means of the spring e5, acting on the screwpin e, which moves in aslot-openin g through the head of the slide E.

Pivoted on the lower end of the slide-bars e2, by means of the screw e7, are the disks e8, which are provided with a serios of centers on the circumference adapted to iit the tapered end of a pinion-blank, the other edge of the pinion beingheld firmly in the tapered opening f of the center S. This arrangement of paris is such that the downward pressure on the outer end of the lever e3 causes the slide-bar e2 to move away from the pinion, allowing the blank to be placed or taken out. Upon releasing the said lever the spring ci causes said bar to move againstthe tapered end of the pinion-blank, holding it in its center with a constant pressure.

The slides E are given rectilinear motion, by mechanism hereinafterdescribed, for the purpose of moving the pinions held therein into and out of contact with the cutters, and in order that the said pinions may be rotated partially at eachdouble movement of the said slide the followi11g-described means are einployed.

Secured upon the lower end of the quillspindle f is the index-plate f2, which is provided with a series of indices f3 upon its circumference t0 correspond with the number of teeth to be cut in the pinion-blank. Upon the inner face of said plate a ratchetwheel f* is secured, which is provided with a series of teeth f, corresponding in number to the indices on the index-plate.

At the side of each slide E is a projecting lug G, which forms a bearing for the shaft g, at the lower end ot' which is fastened the lever g', and at the upper end of the said shaft is secured the lever g2, Awhich has fasteucd to its inner end the roller g3, which operates in a helical groove g4 in the cam g5.

Swiveled upon the lower end of the slide E and concentric with the quill F is the ring Il, provided with the projectinglugs 71.. The saidring is held in place but allowed to vibrate freely by means of the ring 7L, which is fastened to the slide E, and forms a part oli' the bearing and shoulder for the ring I-I. The lug h of the ring II is pivot-ally connected to the rod h2, which is pivoted at its other end to the lever g', so that any vibration of said lever will be imparted to the rin?. The ring II is further provided with an arm h', which has the ratchet pawl h3 pivoted thereon. Said pawl extends inwardly and rests upon the periphery of the ratchet-wheel f4. A spring h4, fastened at one end upon said arm, has its opposite end bearing upon the pawl, and holds the said pawl with a yielding pressure upon the ratchet-\vheel.

The arrangement of parts, as described, being such that each double lnotion of the slide E the rollers gi of the lever g2 is caused t-o operate in the helical groove g4 of the cam g, which is fastened to the table B, a vibrator-y motion is thus imparted to the lever g2, and this in turn, through the shaft g, imparts a like motion to the lever g,which, through the connecting-rod h2, ilnparts an oscillating motion to the ring H, causing the pawl hi to alternately engage with and move forward, and then pass rearwardly over a tooth of the ratchet-wheel f, so as to produce a partial rotation of the spindle f at each double movement of the slide.

In order that the indeIt-platef2 may be automatically locked and released at the proper time, a pawl I is pivoted on the stud t', which depends from a lug e9 on the slide E, and from such pivoted bearing extends outward in a curve over the edge of and in line with IOO said plate, and is provided nearits outer end n with a tooth t', adapted to engage with either of the notches f3. On the upper side of the pawl I is pivoted at one enda lever '212, having its outer end held in contact with the pin i3 by means of the spring 4. The lever i extends under the lever h', and. is engaged by a pin 7L, which projects downward from said lever. The pin h5 is designed t0 bear against the curved edge of the lever t2 to throw the tooth of the pawl out of engagement with the notch of the index-plate when the lever h' moves upon its pivotal point to rotate the spindle. The tooth t" of the pawl I and pin h5 of the lever h', together with the lever ft2, are so disposed that the said pin will engage the lever i2, and it'. (the latter) will engage the pin i" of the pawl I, and thus disengage the said tooth from the index-plate just before the ratchet-pawl ha moving forward engages a tooth of `the ratchet-wheelf, and thus effects the release of said pawl I, permitting it to drop into contact with the indeicplate before said lever has completed its movement in a forward direction. l

The upper side of the lever i? is provided with a curved guideway t7, which receives the end of the projecting pin 715 during the backward motion of the lever h', which pulls the said lever t2 laterally inward until said backward motion nearly completed, when the lever is released and takes its normal position against the pin i. A spiral springt' around the stud@ serves `to hold the lever t? yieldingly against its bearing in line'with the iiideX-plate. i

An automatic vertical movement of the slides E is secured by mechanism as follows: K is a vertical spindle having bearings through -the center of the hub and the base A, and having secured to its upper end the cam-disk 70, carrying a series of four cams, there being none for the front slide, which remains at rest. Each slide has ar screwpin 7a2 extending through the slot '165 in the table On *the inner end of each pinis provided arll'er' Zag, which rolls on lthe upper edge of thecamplate and the cams. The spiral spring 7c, pressing against the stud k7, (see. Fig. 2,) secured to the slide E, keeps the rollers against the plate and cams. The springs 706 are preferably seated in a llongitudinal bore of the table B, and a pin extending upwardly from the stud 7c? retains the spring in place. The arrangement of parts is such that avibrating motion'of the cam-plate 7c produces a vertical reciprocating motion to the'slide E by causing the rollers 7c3 to move upon the cams L and the spring k6 causes a return motion.

For imparting a vibratory motion tothe cam-plate k, (see Fig. 6,) the jacket or sleeve L, secured by screws to the lower side'of the base E,'is provided'as a double bearing for the shaft Z, which is provided at its upper end with a crank-plate Z. On the shaft Z, between the bearings in the jacket L, is aworm-wheel Z2. The crank-plate Z is connected to the spin'- dle K byvmeans of the connecting-rod Z3 and the lever Z4. x

Journaled at right angles to the shaft Z in the saine frame is a second shaft Z5, which near its inner end is provided with a worm ZG, that engages with the teeth of the worm-wheel Z2, and at its'outer end has secured to it the flanged pulley Z7, around which passes a driving-belt. The mechanism thus arranged gives a rotary nioticn to theshaftZ, which imparts a vibratory motion to the'slides E.

Each slide E is intended to be moved vertically in front of each cutter a number of times corresponding tothe number of notches f3 in each index-plate f2 and then to cease such movement. To accomplish this result, the L-shaped lever M, Fig. et, is pivoted to the bracket m, extending from the frame A. vThe horizontal portion of said lever M extends under one of the index-plates f2. The lever lll has a vibratory motion onits bearing, which is accomplished as follows: lVhen the slides E have been passed before their cutters a number of times corresponding to the indices of their index-plates, a screw m2 is brought into line with the lever M at m', and the downward motion of the slides E Lcauses the said screw to press on the lever, and

when the lever is released bythe screw the spring m3, securedto the vertical partof the lever M, and having its free end against 4the bracket, forces the said levei1 back to its norma] position.Y This movement of t-he lever causes the operating mechanism of the machine to ,cease itsmotion and starts the mechanism for rotating the table B, which carries the slides E in front of the next cutter, the shifting of the gearing of the aforesaid mechanism for alternately starting and stopping the same being thus effected, as will more fullyappear farther on. The table B, Fig. 2, being rotated until the slides E are in proper position in front of a cutter, is locked in such positionby means of a pawl N, Fig. 3, which is pivoted on the upper side of the base A, and has its toothed end n in engagement with one of the indices n of the iange a5 on the table B. Said pawl is held in engagement with the said notch by means of the flat spring n2. The pawl N is released from engagement with the table B, and said table rotates, as presently explained, to bring the slides E into position before the next cutters in order bythe following means: Fitted on the upper central portion of the base A and concentric with the circumferential groove n4, formed between the base and the lower end of the sleeve of the table, is the ring O, as seen in Figs. 2 and 4. The

Aring O is provided with projection 0, that carries the ratchet-pawl 0 on its upper side,-Fig. 3. The said pawl is kept with a yielding pressure against the annular flange a5 of the table by means of the flat spring o2. On the opposite side of the periphery of the said ring is a projection o3, carrying the pin o4. On the-lower `side of the pawl N is pivoted a lever n, the

arrangement of parts of the ring O and the pawl N being such that by the forward mo- ,tion of the said ring the pin o4impinges` upon the curved lever n, pressing it outward, thereby carrying the pawl-tootli n out of engagement with the index-notch n just before the ratchet-pawl o', moving forward, is carfried into engagement with an index-notchof the same flange, and thereby causing said pawl N to be released, being thus withdrawn from the coincident index-notch n', and permitted to drop into contact with said annular iiange a5 before the ring O has completed its motion in a forward direction. When said motion is completed, the pawl N drops into the next notch, and the table B is vlocked .in

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that position until the next forward motion l of the ring. Vhen the ring O is moved rearward, the ratchet-pawl rides outof the indexnotcli n', and has no effect onthe table B. As the ring O moves backward the pawl N should not be raised. Therefore the lever n has a lateral motion on its pivot, and its lower side is provided with a curved groove n4. The projecting pin o4 strikes the inner wall of said groove and, continuing its motion,

)resses the lever a6 inwardl f until said mol tion is almost completed, when the lever is released,and the spring as carries it back toits normal position against pin a9.

The vibrating motion of the ring-O is secured by means as follows: Secured to the lower side of the base A is the frame P, and journaled in the said frame isv the shaft p,

l machine is .which at :its upperend'is provided with a crank-plate p', and between its bearings has secured j to `it a worm-wheel 122. The 'crankplate is connected to the vibrating ring O by means of the rod p3, pivoted at its opposite end to the projecting stud o* (see Fig. a) on the ring. Journaled at right angles to the shaft p in the same frame is a shaft p4, which near its inner end is provided with a worm p5, that engages the teeth of the wheel p2, and a hanged pulley p10 is secured to the outer end of` the horizontal shaft for engagement by adriving-belt.

The alternate driving of the mechanism for rotating the table B and moving the slides E up and down is secured by the following described mechanism: Pivoted on the hanger Q on thelower side of the bench to which the attached is the lever q, `which at its farthermost end is connected with the rod q', forshifting the belt from the pulley q2 to g3 by means of the chain q1 and the vibrating `doublelever q, a portion of said connecting chain being shown in Fig. 5. The pulley q2 drives a counter-shaft qX for driving the pulley ZT, and the pulley Q3 drives a counter-shaft q for pulley 196. X is a coiled spring surrounding a journal-pin within the boxing of `the doublelever qi", and having one end secured to a fixed bracketl or hanger and its other end secured to the boxing, as shown in Fig. 5. The tension of this spring causes the shipper-lever q 4to keep the belt normally on the pulley q`2 to drive the slide mechanism, and a downward' movement of the lever q by means of the lever q and the connectingchain shifts the lever q to carry the belt onto the pulley (13, as shown in Fig. 5. The lower end of the shaft p is provided with a face-cam R, having a recess y1' on its upper edge to receive a roller fr on one end of the lever q.

The normal position of the lever M is shown by the dotted lines, as in Fig. et. The last downward movementof the slides E brings the screw m2 into line with the lever M at m', thereby pressing the said lever down and causing the pin m5 on the opposite end of the vertical portion of the lever to ride up the incline S of the lever S applied to the lever q, thus depressing or pulling the shitting or free end of the latter lever down, which effects the shifting of the driving-belt from pulley q2 to pulley Q3. This action causes, as

. above stated, the operating mechanism of the slides E to cease and the mechanism for rotating the slides to operate. As the chain end of the lever q is depressed the opposite end is raised, carrying with it the roller o" out. of engagement with the face-cam R. The said cam makes one revolution when the recess yr comes opposite the roller lr agaii The action of the coiled spring in the double shiftinglever causes the roller to drop into the said recess `when the belt is shifted from the pulley q: to

pulley q2, thereby causlng the slide-rotating mechanism to cease after the said mechanism has made one revolution.

XVhen the slide-operating mechanism is started, the lever M is released, and by the action of theflat spring m3 is pressed back to its normal position without depressingt-lle lever q by its pin m5 passing through an inclined way in the lever'S, as seen in Fig. 4.

` The cup-shaped recess in the tableB is protected from dust, the., by the cap or cover T, which may be easily removed when so desired. Each cam k of the vibrating cam-plate k is pivoted at one end on the risers t, and the free end is held yieldingly against the surface of the cam-plate by means of the flat steel springs t', which are secured at one end to the risers, as shown, and bear against a projecting pin on the cams. During the vibration of the cam-plates the rollers k will t-ravel up the inclined surface of the cams and over the pivoted end thereof, and upon the return vibration the rollers pass` under t-he cams and back to a position t'or the reverse movement. i

A catch can be provided, so that one or more of the cams can be held in a raised position to throw its adjacent slideE out of operation.

The dead-centers of the slides E are in the disks cH on the slides e2, and each disk has a series of said centers on the outer circumference, so that when one center is worn all that is necessary is to remove the pin e and turn the disk so that another center will be presented, when the pin e? is replaced.

The operation of the machine is as follows: Cutters and cams for operating the reciprocating mechanism are provided for but four of the slides E, so that one slide, preferably the one nearestthe operator, is always stationary and in condition for the completed pinion to be removed and a blank inserted. In starting, the cutters are set in motion and a pinionblank is placed within the slide nearest the operator by placing one of its pivots within the female center f and allowing the slidebar e2 to carry its center into engagement with the other end of said pinion-blank, as shown in Fig. l, The main drivin g-power being started, the table is moved one-fifth of a revolution, as heretofore described. At the completion of the double motion of the ring O, which rotates the head, the rotating mechanism is thrown out oi' action and the mechanism for operating the slides E is caused to operate, when the pinion-blank is moved against `the cutter a predetermined number of times and is partly revolved after each double motion of the slide, until it has roughed out a number of pinion leaves corresponding to the number of indices in the index-plate, when by means of mechanism before described `the motion of said slide is arrested, and the automatic rotating mechanism is caused to operate again and bring said slides in front of the next center. Vhile the first pinion is being roughly cut, as described, a second blank is placed in the slide that has been rotated to the front, and when the aforesaid IOC IlO

table has been rotated so that the first blank l 1s now in front of the second cutter the second blank is in front of the first cutter. Each of said cutters completesit-s work. The operation is thus continued, and each pinion-blank is caused to pass in front of and inV contact with each of the cutters a number of times equal to the number of teeth to be cut, which is regulated by the number of notches in the index-plate. The blank having been rotated from cutter to cutter, the completed pinion comes to the front and a blank is inserted in its place. l

By the mechanism shown and the arrangement of parts,while four pinion-blanks are being acted upon simultaneously by the different cutters, one slide is at rest; but at no time is the whole machine at rest. When the slide-operating machinery is at rest, the ro-- tating of the table and slides is carried on automatically, and when said rotation ceases tho slide mechanism begins.

I am aware that machines of this class have heretofore been patented, one of which is very intricate and not wholly automatic, as it is necessary to rotate the turret by hand; therefore a loss of time results at each rotation of the machine.

Another machine of this character is ob-4 jectionable from the fact that the entire turret or table is raised; also the cams for rotating the pinions being rotary and the pinion-holder in front is not motionless, which causes the operator more or less trouble. These objections arenot found in my invention, as it is entirely automatic; and, further, the slides having an up-and-down motion simultaneously, the front slide is always motionless, and any other cam can be thrown out of action, thus allowing as few cutters as is necessary; and, further, I have a greater degree of simplicity with a capability to do more accurate work on account of its direct adjustment. v

Having described my invention, what I claim,and desire to secure by Letters Patent, 1s

l. The combination, with the base-frame, of the swiveled vertical frames for holding t-he cutter-heads, the slides thereon, the adjustin g-screws having the graduating-1narks, and the projecting bearing having the indicatormarks, substantially as specified.

2. The combination, with the base-f rame, of the vertical framesC, swiveled on Vthe pin c l and having arc slots,and the adjusting-bolts projecting through said arc slots, substantially as specified.

3. In combination with the base having the integral vertical tapered hub, the table having the sleeve portion journa-led on said hub, the washer beveled onits lower face, and the threaded nut engaging the threaded end of the hub, substantially as specified.

4. The combination, with the table and the base, ofthe outstanding` vertical Ways having the right-angled edge and the inwardly-beveled edge, the pinion-holding slides fitted in said ways and having the longitudinal opening for the quills, the bar e2, sliding in the vertical groove at the upper end of the said slides, the lever pivoted thereto, the spring e5, and the pin e6, substantially as specified.

5. The combination, with the vertically-operating slide, of the quill-spindle working vertically in the slide, the index-plate having the indices in its circumference, the ratchetwheel onthe inner face thereof,and the mechanism'for operating the same, substantially .as specified.

6. rlhe combination, with the slides having the projecting lug, of the shaft g, the lever g', secured to the lower end thereof, the lever g2, the roller g3 thereon, and the cam having the .helical groove and the operating mechanism,

substantially as specified.

7. The combination, with the slide E, of the ring concentric with the quill and having the projecting lug' 71, the ring h, the rod h2, the lever g', the arm.h on said ring having .the pawl pivoted thereon, and the spring fastened at one end to the arm and bearing upon the pawl, substantially as specified.

8. The combination, with the index-plate, of the pawl I, pivoted on the stud t', depending from the slide, said pawl extending outward over-the edge of the plate and having the tooth i, the lever i2, Apivotedcn the pawl and having the curved guideway on its upper side, and the spring i4, substantially as specified.

9. The combination, with the baseand the integral vertical hub and the vertical slides, of the spindle Kthaving bearings in said hub, the cam-disk having the cams thereon, the pint/:2, extending through the slot Rf, the roller 7c3 on the inner end of said pins, and the ICO spiral spring seated in the longitudinal base of the table, substantially Aas specified.

l0. The combination, with the base and the jacket or sleeve secured to the lower side thereof, of the vertical shaft Z, the crankplate onI its upper end, the worin-wheel, the shaft at right angles to the shaft Z in the same frame and having the Worm thereon, the flanged pulley at its outer end, the connecting-rod Z3, and the lever l, substantially as specified. l

ll. The combination, with the vertical slides, of the L-shaped lever pivoted to the bracket extendin g from the frame A, the horizontal portion extending under the indexplate, the screw m2, the spring m3, and the lever g4, substantially as specified.

12. rlhe combination, with the index-plate, the table, and the base, of the pawl N, having the toothed end, the flat'spring, the ring O, having' the projection o, the ratchet-pawl pivoted thereon, the spring o2, the projection 03, having the pin o4, the lever n, having the curved groove on its lower side, and theoperating mechanism, substantially as specified.

13. The combination, with the ring O, the

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base, and the 'traine P, of the shaft 1J, the erank-plate on its upper end, the worm-wheel between the bearings, the rod p, the shaft 1 7", jourualed in the same frame at right angles to the shaft p, having the Worin l'or engaging the teeth of the Wheel p2, and the flanged pulley, substantially as specified.

14. The Combination of the lever q, pivoted in the hangers Q, the rod q,tl1e eliain q, the double vibrating lever g5, the pulleys q2 qs, the counter-shaft, the ooiled spring)I Within the double lever, the face-cam having the recess on its upper edge, the roller o", the pin on, and the lever S, having the curved Way for said pin, substantially as specified.

15. The eo1nbination,with the cam-plates having the risers, of the eanis 7u', pivoted at one end to said risers, and the free end yieldingly bearing against the surface of'the eamplate, the springs t', seeured to the risers and bearing' upon the pin outstanding from the eams, and the ineellanisin for operating the same, substantially as specified.

In testimony whereof I atlix my signature in presence of two Witnesses.

TI-IOS. F. SHERIDAN. lVitnesses:

A. T. WESTLAKE, FRED. I. Gn'nrv. 

